@N3VEM
Now this afternoon, the bands are so very dead. It's amazingly quiet.
I even hit the TUNE button to make sure the coax hadn't been pinned!
AHA!
I had a software failure. Probably due to an OS update that I ran today while all the apps were up. It appears that flrig LOST its connection to the FTdx3000. It was stuck on 12m.
All the software looked to be band-hopping normally, but the rig's VFO did not move.
Stop/start of WSJT-x & flrig fixed it.